Watering schedule

How often to water Hairy Houseleek (Sempervivum ciliosum) — the schedule

Also called Hairy Houseleek, Cobweb Houseleek.

More about hairy houseleek

Watering at a glance

Base rhythm	Every 2–4 weeks in the growing season; once a month or less in winter
Spring / summer	Spring and summer: soak fully, then leave it alone until the soil is dry all the way down — usually around every 2–4 weeks.
Autumn	Autumn: ease off as growth slows; stretch the gap noticeably longer than the summer rhythm.
Winter	Winter: water sparingly, roughly once a month or even less in a cool room. The thick leaves carry it through.
Light	Direct sun (at least 4-6 hours)

About Hairy Houseleek

Sempervivum ciliosum · also called Hairy Houseleek, Cobweb Houseleek · houseplant

Sempervivum ciliosum is a compact alpine succulent from the Balkans, forming tight rosettes densely covered in fine silvery hairs that trap moisture and protect against frost. It thrives in gritty, free-draining soil with full sun and minimal watering. Extremely cold-hardy and virtually maintenance-free, it offsets freely to form attractive mats.

Ideal humidity: 10–40%

Watch for — Crown rot: The most common issue, caused by overwatering or water pooling inside the hairy rosette. Ensure the soil dries fully between waterings and always water at soil level.

The watering schedule, season by season

Hairy Houseleek stores water in its thick leaves and stems, so when in doubt, wait — it survives drought far better than soggy soil. The base rhythm for hairy houseleek is every 2–4 weeks in the growing season; once a month or less in winter, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.

Spring & summer (active growth): Spring and summer: soak fully, then leave it alone until the soil is dry all the way down — usually around every 2–4 weeks.
Autumn (slowing down): Autumn: ease off as growth slows; stretch the gap noticeably longer than the summer rhythm.
Winter (rest / dormancy): Winter: water sparingly, roughly once a month or even less in a cool room. The thick leaves carry it through.

Allow soil to dry completely between waterings. Water at the base — never overhead, as moisture trapped in the hairy rosette causes rot. Virtually drought-tolerant once established.

Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for hairy houseleek in seconds.

How to tell hairy houseleek needs water

A calendar is the worst way to water hairy houseleek. Check the plant and the soil instead — for this species, look for these signals in order:

The lower or oldest leaves feel slightly soft or look a touch wrinkled.
The pot is noticeably light when lifted.
Soil is dry several centimetres down, not just at the surface.

The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering hairy houseleek for a day is almost always safer than over-watering it.

Overwatering vs underwatering hairy houseleek

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For hairy houseleek specifically:

Signs you are overwatering

Leaves turn translucent, yellow, soft and mushy — classic overwatering.
Lower stem darkens or goes squishy at soil level.
Whole rosettes or sections drop at the lightest touch.

Signs you are underwatering

Leaves pucker, wrinkle or curl inward — a harmless thirst signal that reverses fast after a soak.
Older leaves dry crisp from the tips first.

Overwatering is the number-one killer of hairy houseleek. The thick leaves are a water tank — a slightly thirsty plant recovers in a day; a waterlogged one rots from the roots up.

Water quality notes

Tap water is generally fine for hairy houseleek; the soak-and-dry rhythm matters far more than water type.

Seasonal and environmental adjusters

Every figure above shifts with the conditions in your home. For hairy houseleek, the levers that matter most are:

A gritty, free-draining mix is essential — ordinary potting soil holds too much water for this plant.
Terracotta dries faster and is more forgiving than plastic or glazed ceramic.
More light and warmth speed drying, so the interval shortens in peak summer — always check, never assume.

Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of hairy houseleek.

Hairy Houseleek watering — frequently asked questions

How often should I water hairy houseleek?

Water hairy houseleek every 2–4 weeks in the growing season; once a month or less in winter. Spring and summer: soak fully, then leave it alone until the soil is dry all the way down — usually around every 2–4 weeks. Winter: water sparingly, roughly once a month or even less in a cool room. The thick leaves carry it through.

How do I know when hairy houseleek needs water?

The lower or oldest leaves feel slightly soft or look a touch wrinkled. The pot is noticeably light when lifted. Soil is dry several centimetres down, not just at the surface. The single most reliable test for hairy houseleek is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered hairy houseleek look like?

Leaves turn translucent, yellow, soft and mushy — classic overwatering. Lower stem darkens or goes squishy at soil level. Whole rosettes or sections drop at the lightest touch. Overwatering is the number-one killer of hairy houseleek. The thick leaves are a water tank — a slightly thirsty plant recovers in a day; a waterlogged one rots from the roots up.

What are the signs of an underwatered hairy houseleek?

Leaves pucker, wrinkle or curl inward — a harmless thirst signal that reverses fast after a soak. Older leaves dry crisp from the tips first.

Can I use tap water on hairy houseleek?